Beamforming Codebook Updates for Changing User Angles

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Solution Overview

Problem

Existing beamforming techniques in wireless networks struggle to efficiently adapt to changing angles of communication devices and wireless stations, leading to suboptimal signal transmission and interference, particularly in environments with varying channel conditions.

Innovation Solution

Implement a dynamic beamforming codebook management system that utilizes self-organizing maps (SOM) to adapt beamforming settings based on feedback from communication devices, adjusting antenna phase settings and beam angles to optimize wireless connectivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If beamforming settings are fixed in a codebook, then device complexity is reduced and ease of operation is improved, but adaptability to changing angles and environmental conditions deteriorates

Engineering Contradiction:

Improveadaptability to changing anglesVSAvoidcodebook management complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic codebook management where beamforming parameters are updated based on feedback from communication devices about their angles and channel conditions. The codebook evolves over time to adapt to changing environmental conditions while maintaining a structured format that balances adaptability with manageable complexity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system uses feedback loops where communication devices report their angular positions and channel quality metrics back to the base station. This feedback drives the dynamic updating of beamforming settings in the codebook, enabling continuous adaptation to changing conditions without requiring complete reconfiguration.

Inventive Principle:

Principle #23Feedback

2Reliability

If dynamic codebook updating is implemented, then adaptability to changing conditions is improved, but device complexity and processing requirements increase

Engineering Contradiction:

Improvewireless connectivity reliabilityVSAvoidbeamforming control complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent pre-organizes beamforming parameters into a structured codebook format before deployment. This preliminary organization allows for efficient storage and retrieval of beamforming settings, reducing the processing complexity required for dynamic updates while maintaining reliability through prevalidated configurations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts specific beamforming parameters (such as phase shifts and beam angles) within the codebook structure based on feedback. By changing only the necessary parameters rather than complete reconfiguration, the system maintains reliable connectivity while minimizing processing complexity and update overhead.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If beamforming settings are updated frequently, then signal quality and connectivity are improved, but loss of time for processing and communication increases

Engineering Contradiction:

Improvesignal qualityVSAvoidcodebook update time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent implements periodic updates of beamforming settings based on feedback intervals and channel condition thresholds. Rather than continuous updating, the system updates at optimized intervals that maintain signal quality while minimizing processing overhead and time loss associated with frequent codebook revisions.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

Communication devices autonomously monitor their own channel conditions and angular positions, generating feedback only when changes exceed predefined thresholds. This self-service approach reduces the frequency of updates required, maintaining signal quality while minimizing the time and processing resources needed for codebook management.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12512887B2Beamforming codebook management and beamforming control in a wireless network

Publication Date: 2025.12.30 CHARTER COMM OPERATING LLC

AI summary

A wireless base station, via a first wireless beam in a beamforming codebook, transmits communications to multiple communication devices. In one implementation, the wireless base station receives respective channel matrix information from each of the multiple communication devices. The channel matrix information indicates weight coefficients applied to respective receiver antenna hardware to receive the communications. Alternatively, when reciprocity holds, the wireless base station can be configured to generate the channel matrix information based on observation of receiving communications from the one or more communication devices. Via the channel matrix information, a communication management resource associated with the wireless base station adjusts beamforming settings of the first wireless beam to best support communications with the communication devices over the first wireless beam. The communication management resource dynamically updates the beamforming codebook such that a corresponding wireless beam is angularly adjusted towards a centroid of the communication devices.